/*
 * CCVisu is a tool for visual graph clustering
 * and general force-directed graph layout.
 * This file is part of CCVisu.
 *
 * Copyright (C) 2005-2011  Dirk Beyer
 *
 * CCVisu is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * CCVisu is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with CCVisu; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Please find the GNU Lesser General Public License in file
 * license_lgpl.txt or http://www.gnu.org/licenses/lgpl.txt
 *
 * Dirk Beyer    (firstname.lastname@uni-passau.de)
 * University of Passau, Bavaria, Germany
 */
package org.sosy_lab.ccvisu.readers.factextractor;

import java.util.List;

import org.sosy_lab.ccvisu.graph.Relation;

import com.google.common.base.Strings;

/**
 * This class stores the relations of a project.
 * Here relations are filtered and only the requested relations will be
 * returned.
 */
public class ProjectStructureInfo {

  private Relation              relations               = new Relation();

  private List<String>          listBlackFilterPackages;

  public ProjectStructureInfo(List<String> blacklistedPackages) {
    assert (blacklistedPackages != null);

    this.listBlackFilterPackages = blacklistedPackages;
  }

  /**
   * @return The relations that have previously been added to this object,
   * except for those blacklisted.
   */
  Relation getRelations() {
    return this.relations;
  }

  void addRelation(String pRelName, String pSourceName,
      String pTargetName, String pTargetPckgName) {

    if (Strings.isNullOrEmpty(pSourceName)
        || Strings.isNullOrEmpty(pTargetName)) {
      return;
    }

    // Check black-list filter condition
    if (!Strings.isNullOrEmpty(pTargetPckgName)) {
      for (String ignorePckg : listBlackFilterPackages) {
        if (pTargetPckgName.startsWith(ignorePckg)) {
          return;
        }
      }
    }

    relations.addTuple(pRelName, pSourceName, pTargetName);
  }
}
